公开(公告)号：US20180168710A1

公开(公告)日：2018-06-21

申请号：US15894050

申请日：2018-02-12

Applicant: Boston Scientific Scimed Inc.

Inventor： Frank Ingle ,  Robert F. Bencini ,  James Mazzone ,  Rebecca W. Tin

IPC: A61B18/02 ,  A61B18/00

CPC classification number: A61B18/02 ,  A61B2018/00255 ,  A61B2018/0212

Abstract: A cryotherapy system includes a cryotherapy catheter having an inflatable balloon portion and a pressure regulator. The inflatable balloon portion includes an outer balloon and an inner balloon within the outer balloon. The inner balloon is configured to receive during a cryotherapy procedure a cryogenic agent for extracting heat from body tissue at a desired location. The inflatable balloon portion is at a distal end of the cryotherapy catheter. The pressure regulator is adapted to maintain a positive pressure between the inner balloon and the outer balloon during a cryotherapy procedure.